Plow.



No. 656,393. Patented u 2|, I900.

c. B. DAVIS, PLOW.

(Application filed Apr. 8, 1900.) (No Model.)

IVITNESSES [NV NTOR THE n'owms PETERs c0 womuma, msmuamw. o. c.

UNIT D STATES PATENT OFFICE.

CALVIN R. DAVIS, OF SOUTH BEND, INDIANA, ASSIGNOR TO THE SOUTH BEND IRONWORKS, OF SAME PLACE.

PLOW.

SPECIFICATION forming part of Letters Patent No. 656,393, dated August21, 1900. Application filed April 6, 1900. Serial No. 11,861. (Nomodel.)

To all whom it may concern.-

Be it known that I, CALVIN R. DAVIS, a resident of South Bend, in thecounty of St. Joseph and State of Indiana, have invented certain new anduseful Improvements in Flows; and I do hereby declare the following tobe a full, clear, and exact description of the invention, such as willenable others skilled in the art to which it appertains to make and usethe same.

My invention relates to an improvement in plows, the object of theinvention being to so construct the standard of a plow and so connect itto the plow-beam that when a rigid obstruction is struck the standardwill be swung back on the beam and not break, as is the case withdevices of similar character heretofore known.

With this object in view the invention consists in certain novelfeatures of construction and combinations and arrangements of parts, aswill be more fully hereinafter described, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a view in side elevationillustrating my improvements in position for use. Fig. 2 is a similarview showing the position of the parts after having struck a rigidobstruction, and Fig. 3 is a view in section on the line 00 0c of Fig.1.

A represents a plow-beam, andB my improved standard connected thereto,the said standard being shaped and constructed to receive the point,moldboard, and landside in the usual manner. The upper end of thestandard 13 where it is disposed against the lower face of the beam A isprovided with a forwardly-projecting perforated enlargement 1, saidperforation being in alinement with a hole in the beam A, and a bolt 2'is passed through said enlargement and beam and through a washer 3 ontop of the beam and is secured in place by a nut 4. The enlargement 1and, in fact, every part of the standard B is of greater strength thanthe bolt 2,

so that the latter will break before the stand ard for a purpose whichwill more fully hereinafter appear.

The standard B is provided on its upper end with a rearwardly-projectinglooped portion 5, made cylindrical or circular in crosssection andsecured in the curved or hooked end 6 of a bolt 7, which latter isdisposed in a hole in the standard, passed through a .washer 8 on theupper edge of thebeam A, and

as heretofore constructed of which Iam aware;

but owing to the fact that the bolt 2 is purposely made of less strengththan the standard the former will give way and permit the standard toswing back, with the hooked portion 6 of the bolt '7 serving as abearing for the looped portion 5 of the standard, as shown in Fig. 2,and not injure the standard in the slightest, and the operator hassimply to replace the broken by a new one with but slight trouble andexpense, and the plow will then be in as perfect condition as before.

It will be seen that by employing my improvements the great trouble andexpense of broken standards, which is so common with plows now in use,is entirely obviated, because with my improvements it is practicallyimpossible to break the standard while plowing.

Various slight changes might be resorted to in the general form andarrangement of the several parts described without departing from thespirit and scope of my invention, and hence I do not wish to limitmyself to the precise details set forth, but consider myself at libertyto make such slight changes and alterations as fairly fall within thespirit and scope of my invention.

- Having fully described my invention, What I claim as new, and desireto secure by Letters Patent, is-

1. The combination with a plow-beam and a standard having a seat at itsupper end against the under face of the beam, of a bolt pivotallyconnecting the rear portion of the standard to the beam and a boltweaker than the standard securing the forward portion of said standardto the beam.

2. The combination with a plow-beam and a standard seated at its upperend against the bottom face of said standard, and perforated lugsprojecting forwardly and rearward from the respective ends of the seatportion of the standard, of a bolt passing through the rear end of thestandard and having a hook depending from the beam and engaging the rearlug of the standard to pivotally connect the latter to the beam and a 10breakable bolt passing downwardly through the beam and through theforward lug of the standard.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

' CALVIN R. DAVIS.

Witnesses:

EDWIN NIOAR, FRANK ABBOTT.

